蓝牙4.2标准正式公布 为引入IPv6做好准备

       近日，蓝牙技术联盟（Bluetooth Special Interest Group）对外公布了新的蓝牙标准——蓝牙4.2标准，为将IPv6协议引入蓝牙标准奠定了基础，支持这种标准的设备将可直接通过IPv6和6LoWPAN接入互联网。
       另外蓝牙4.2还针对隐私和速度做了改进，在新的标准下蓝牙信号想要连接或者追踪用户设备必须经过用户同意，另外速度方面也有更优异的表现，两部蓝牙设备之间的数据传输速度也提高了“最高两倍”，主要由于蓝牙智能(Bluetooth Smart)数据包的容量提高，其可容纳的数据量相当于此前的10倍左右。
       目前搭载蓝牙4.0的设备可以通过软件升级的方式支持蓝牙4.1，同样蓝牙技术联盟也确认通过同样的方式升级到蓝牙4.2，但并非所有功能都可获取。蓝牙技术联盟的一名代表称：“隐私功能或可通过固件升级的方式获得，但要视制造商的安装启用而定。速度提升和数据包扩大的功能则将要求硬件升级才能做到。”

Specification Adopted Documents
Bluetooth® Core Specification 4.2
Bluetooth® Core Specification 4.2 is an important update to the Bluetooth Core Specification delivering exciting new features and benefits for Bluetooth Smart. This will create significant advantages for developers and manufacturers, while providing a better user experience for their customers. Bluetooth 4.2 makes Bluetooth Smart even smarter, faster and the ideal wireless technology for the Internet of Things (IoT).
Links to tools and information:

• Quick Reference Guide
• Frequently Asked Questions
• Bluetooth Brand Guide
• Download the Core Specification
  

​Bluetooth Qualification Test Requirements
If you are looking for more information about the Bluetooth Qualification Testing Requirements, please visit theQualification Test Requirements​ page.

Adopted Bluetooth Core Specifications

Specification	Adopted Date	Notes
​Core Version 4.2	​02 December 2014	​
​Core Specification Supplement (CSS) v5	​02 December 2014	​
​Core Version 4.1	​03 December 2013	​
Core Specification Addendum (CSA) 4	12 February 2013	Refer to the Mixing of Specification Versions Part for applicability
Core Specification Addendum (CSA) 3	24 July 2012	Refer to the Mixing of Specification Versions Part for applicability
Core Specification Addendum (CSA) 2	27 December 2011	Refer to the Mixing of Specification Versions Part for applicability
Core Version 4.0	30 June 2010
Core Version 3.0 + HS	21 April 2009
Core Specification Addendum (CSA) 1	26 June 2008	Applicable to v2.0 + EDR and v2.1 + EDR
Core Version 2.1 + EDR	26 July 2007
Volume 4: HCI Transports	01 January 2006

https://www.bluetooth.org/en-us/specification/adopted-specifications
Bluetooth® Core Specification 4.2 makes the Internet of Things (IoT) better with multiple ways to connect to the Internet:
Low-power IP connectivity
The latest version of internet protocol (IPv6/6LoWPAN) for Bluetooth Smart devices.
Bluetooth Smart technology gateways
Internet connectivity with the flexible Bluetooth Smart Generic Attribute Profiles (GATT) architecture.*
*Available early 2015

Bluetooth SIG ratifies version 4.2, has new profile ‘ready to go’

The Bluetooth Special Interest Group (SIG) has officially adopted version 4.2 of the Bluetooth core specification. The upgrades included in v4.2 are said to improve privacy and increase speed.

"Bluetooth 4.2 is all about continuing to make Bluetooth Smart the best solution to connect all the technology in your life – from personal sensors to your connected home," said Mark Powell, pictured, executive director of the Bluetooth SIG. "In addition to improvements to the specification itself, a new profile, known as IPSP, enables IPv6 for Bluetooth, opening entirely new doors for device connectivity.

"Bluetooth Smart is the only technology that can scale with the market, provide developers the flexibility to innovate, and be the foundation for the IoT," Powell asserted.

Bluetooth 4.2 introduces privacy settings that lower power consumption, while building upon Bluetooth's 'government grade' security features. The privacy features make it difficult for eavesdroppers to track a device through its Bluetooth connection without permission. For example, says the SIG, when shopping in a retail store with beacons, unless you've enabled permission for the beacon to engage with your device, you can't be tracked.

Bluetooth 4.2 enabled devices will be able to transfer data up to 2.5 times more quickly than with previous versions. Faster data transfer and packet capacity is said to make it harder for transmission errors to occur and reduces battery consumption.

The IPSP will allow Bluetooth Smart sensors to access the Internet directly via IPv6/6LoWPAN allowing Bluetooth Smart edge devices to be managed using the existing IP infrastructure. This is said to suit connected home applications that need personal and wide area control. This profile will be ratified by the end of the year, said the SIG.

Websites    http://www.bluetooth.org

　　蓝牙技术联盟(Bluetooth SIG)在12月3号，公布了蓝牙4.2核心标准，并且在SIG的官网上给出了“Connect、Smarter、Faster”这样的口号。
Connect:蓝牙4.2新标准将IPv6协议与蓝牙标结合到了一起，支持4.2新标准的设备将可直接通过IPv6和6LoWPAN接入互联网。
Smarter:蓝牙4.2标准还在隐私改进。新标准下，智能蓝牙设备只能被该设备授权的用户，进行连接或者追踪。
Faster:蓝牙4.2标准还致力于改善蓝牙设备之间的数据传输速度，相对于4.1版本智能蓝牙的传输速度提高了2倍，主要由于智能蓝牙数据包的容量提高，其可容纳的数据量相当于此前的10倍左右。
　　现有的蓝牙4.0适配器可通过软件升级的方式支持蓝牙4.1标准，而蓝牙技术联盟已确认蓝牙4.2也同样如此。
对较老的蓝牙适配器来说，蓝牙4.2的部分功能将可通过软件升级的方式获得，但并非所有功能都可获取。
与此同时，蓝牙技术联盟(Bluetooth SIG)在12月9号，发布新的蓝牙测试工具PTS6.0，
新版本的PTS6.0更加的强大，支持最新的蓝牙4.2标准的测试，包含了Profile以及部分Protocol的测试，并且现在蓝牙会员都可以免费下载的到。